RE: How Much Potassium?

I just received an email from a fellow grower here in VT who threw out his
0-0-60 because it blew out his pumpkins, too. I'm sticking to low K
fertilizers such as seaweed emulsion and the like from now on.  Steve M.


--- On Sat, 8/15/09, Stephen Jepsen <ctpumpkin@optonline.net> wrote:

From: Stephen Jepsen <ctpumpkin@optonline.net>
Subject: RE: How Much Potassium?
To: pumpkins@hort.net
Date: Saturday, August 15, 2009, 12:42 AM

Like Tom I favor sulfate of potash (0-0-50) over muriate (0-0-60).  However
where salt is a concern (horse manure) but Potash has been confirmed
necessary (tissue test), you cannot beat using potassium nitrate for extreme
low salt & high solubility.

The tissue test is the sure fire way to confirm.

Stephen Jepsen
CT GS&PGA Director Emeritus
GPC Executive Committee


-----Original Message-----
From: owner-pumpkins@hort.net [o*@hort.net] On Behalf Of
Tom Privitera
Sent: Friday, August 14, 2009 9:17 PM
To: pumpkins@hort.net
Subject: RE: How Much Potassium?

Steve,
If you want a no fail way of telling what your plant might need or not need,
get a tissue test, I was able to see what the nutrient levels are in my
plant and know that I am doing ok without heavy ferts.
Tom

Tom Privitera
Extreme Web Sales, Inc.
www.extremepumpkinstore.com
Sales@extremepumpkinstore.com


-----Original Message-----
From: owner-pumpkins@hort.net [o*@hort.net] On Behalf Of
Steve Minor
Sent: Friday, August 14, 2009 9:03 PM
To: pumpkins@hort.net
Subject: RE: How Much Potassium?

Thanks, Tom.  I have a heavy clay soil which I try to amend with lots of
composted horse manure, and a lot of anything else I can get my hands on.
Since clay soils are supposed to be already high in potassium, it just
dawned
on me why that AG blew out last year.  I might do better to stick to
20-20-20
or something similar and cut waaaayyyy back on K-heavy fertilizers.  Haste
makes waste--as in a big pile of dead pumpkin.  Slow and steady wins the
weigh-off.  Steve M.

--- On Fri, 8/14/09, Tom Privitera <tprivitera@optonline.net> wrote:

From: Tom Privitera <tprivitera@optonline.net>
Subject: RE: How Much Potassium?
To: pumpkins@hort.net
Date: Friday, August 14, 2009, 8:31 PM

Steve,
It really depends on your soil and plants. That said, 0-0-60 muriate of
potash is very high in salts, I highly recommend 0-0-50 if you want to use
something with that percentage of potash, I will be using a 3-18-18.
Tom

Tom Privitera
Extreme Web Sales, Inc.
www.extremepumpkinstore.com
Sales@extremepumpkinstore.com


-----Original Message-----
From: owner-pumpkins@hort.net [o*@hort.net] On Behalf Of
Steve Minor
Sent: Friday, August 14, 2009 7:40 PM
To: pumpkins@hort.net
Subject: How Much Potassium?

How much potassium (K) is recommended for the next
2 months?  I'm using 2
tablespoons of 0-0-60 dissolved in a 20 gallon sprayer as
a temporary measure
once a week.  My alpha dog is (according to GPC tables) @400
lbs and I don't
want to blow it (pun intended) as I did last year.  Suggestions
from
consistent heavy hitters greatly appreciated.  Steve M.

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